The Colorado State Patrol is investigating a single-vehicle motorcycle crash that occurred on Highway 24 near milepost 277 in Park County. The crash resulted in one fatality.

A 2019 Harley Davidson FLH three-wheeled motorcycle was traveling eastbound on Highway 24 when the driver failed to negotiate a curve to the right. The vehicle traveled across the highway, traveled off the northern road edge, and across a field before it crashed through a fence. The motorcycle entered a field, overturned, ejected the driver and passenger, and came to rest on its wheels.

The Harley’s driver, identified as 66-year-old Dale Dillavou of Florissant, was not wearing a helmet and suffered serious injuries. Dillavou was flown to a hospital for treatment. The passenger, a 66-year-old female from Florissant, was not wearing a helmet and was pronounced dead at the scene.

The passenger’s name is being withheld until her next-of-kin have been notified.

Alcohol and drugs are not suspected as a contributing factor in the crash, which remains under investigation at this time.